Mediterranean diet can reduce risk of stroke by up to 25%, long-term study suggests
(www.theguardian.com)
Also if you can afford a Mediterranean diet in the US, you're probably decently well off and get better healthcare in general.
Kinda reminds me of those news stories about how people who drink 1-2 glasses of red wine 3-5 times per week have the best health outcomes. Like yeah, I get that rich people are doing fine.